Reef halo riddle: What’s behind the mysterious rings around coral?

We long assumed that circles of bare sand around coral reefs are caused by fish nibbling away seaweed. But a 10-year investigation has found the truth is far murkier Source: https://www.newscientist.com/article/mg24232270-300-reef-halo-riddle-whats-behind-the-mysterious-rings-around-coral/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

Lithium detected in an ancient star gives new clues for Big Bang nucleosynthesis

Researchers from the Instituto de Astrofísica de Canarias (Spain) and the University of Cambridge (UK) have detected lithium (Li) in the ancient star J0023+0307, a main-sequence extremely iron-poor dwarf star about 9,450 light years away in the galactic halo. Source: https://phys.org/news/2019-04-lithium-ancient-star-clues-big.html…

Showtime’s Halo Series Has Found Its Master Chief

When news first broke about Showtime’s live-action series based on Microsoft’s Halo franchise, one of the more surprising details was that the show would revolve around the video game franchise’s hulking Spartan warrior whose face is never actually revealed, because he never removes his helmet. See that face up there?…Read more…Source: https://io9.gizmodo.com/showtimes-halo-series-has-found-its-master-chief-1834116900…